Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

David J Williamson, PHD

Individual provider Clinical Neuropsychologist · NPI 1528181047

David J Williamson, PHD is a Clinical Neuropsychologist in Mobile, Alabama. Practices as a sole proprietor. Licensed in Alabama and Florida.

Licensed in
AL, FL
In the registry since
2007
Specialties on file
4
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

2450 Old Shell Rd
Mobile, AL 36607-3020
Phone: (251) 654-2828
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Neuropsychologist (primary) Taxonomy 103G00000X · Licence 871 (AL)
Clinical Neuropsychologist Taxonomy 103G00000X · Licence PY 5277 (FL)
Clinical Psychologist Taxonomy 103TC0700X · Licence PY 5277 (FL)
Clinical Psychologist Taxonomy 103TC0700X · Licence 871 (AL)

Record details

NPI number1528181047
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorYes
NPI enumeratedApril 9, 2007
Last updated in NPPESDecember 12, 2014
Mailing address704 Providence Estate Dr W, Mobile, AL 36695-4606

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